Portion of cleaning sheet



FIG. 1 is a perspective view of the portion of cleaning sheet, embodying the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof, which is the same as the back view, and which for clarity of depiction only a portion of the base of the broken line structure seen in FIGS. 1 and 2 is depicted in this and the FIG. 4 view; and,

FIG. 4 is a side elevation view thereof, which is the same as the view from the opposite side.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of cleaning sheet, as shown and described. 